Well, I guess this is good news. I truly like David. Not as much as Brooks or Evans, but I would be happy if he retires a Buccaneer. I could also see him being on the team next season is more of a platoon role. Though I do wonder how much his knee affected his play.
I think he's said that at least since the end of the last season
If he wants to player coach + 15 snaps a game, sure
That's not news. His agent seems to think he can still play because he had his knee cleaned up. I'm guessing the Bucs will bring him back. Whether he was slowed by a knee injury - maybe he was. But I'm still very dubious that he has anything left in the tank. Sometimes somebody has to tell a guy he's done when he doesn't want to hear it, but the player freindly linebacker desperate Bucs don't have the stones to do that.
So expect David back, but don't expect that it will end well.